LOAD CELL, POTENTIOMETER, PROCESS AND TEMPERATURE DISPLAY
DM4500U
Suitable For Load Cell, Temperature and Process Signals
Internal Power Supply For Loop and Load Cell Excitation
Tare Functions for Load Cell
Multi Colour Display
Relay, NPN/ PNP, Current / Voltage Output Options
RS485 Comms Option
INTRODUCTION
The DM4500U accepts various types of sensors including Load Cell, Pt100, Thermocouple, Potentiometer and Process current or voltage enabling the DM4500U to be used in a wide variety of applications. Output options are provided that include NPN / PNP, 2 or 4 relays, current / voltage and RS485 comms. The unit can be fully programmed from the front panel buttons or via the RS485 comms option.
All parameters can be entered by pressing combinations of the three sealed front panel keys through a series of menus in helpful mnemonics or via the optional communications port.
The display can be programmed to read in three different colours and two levels of brightness. Red, Green and Orange. Colours can be programmed in a variety of different ways. For example alarm, normal running or high scale can be displayed in different colours.
SPECIFICATIONS @ 20 °°°°C
INPUT SIGNAL
Configuration asymmetric differential
Process input Voltage Current Voltage ±10 V DC ±20 mA DC Max. resolution 1 mV 1 µA
Input impedance 1 MΩ 15 Ω
Excitation 24 V @ 60 mA, 5 V or 10 V @ 60 mA Max. error ± (0.1% of the reading +1 digit)
Load cell input Voltage ±15 mV ± 30mV ± 150mV Max. resolution 1 µV
Input impedance 100 MΩ Excitation 5 V or 10 V @ 60 mA Max. error ± (0.1% of the reading +1 digit)
Potentiometer input Voltage ±10 V DC Input impedance 1 MΩ Display resolution 0.001% Max. error ± (0.1% of the reading +1 digit) Potentiometer min. value 200 Ω
Temperature input Cold junction compensation (-10 to +60) ºC Cold junction ± 0.2 ºC Drift ± 0.05 ºC / ºC Pt100 sensor excitation < 1 mA DC
Max. Lead resistance 40 Ω / cable (balanced)
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LOAD CELL, POTENTIOMETER, PROCESS AND TEMPERATURE DISPLAY
Input Range
(res. 0.1 º) Accuracy (res. 0.1º)
Range (res. 1º)
Accuracy (res. 1º)
(-50.0 to +800.0) ºC 0.4% Rdg ±0.6 ºC
(-50 to +800) ºC 0.4% Rdg ±1 º C
TC J
(-58.0 to +1472.0) ºF 0.4% Rdg ±1 ºF
(-58 to +1472) ºF 0.4% Rdg ±2 º F
(-50.0 to +1200.0) ºC 0.4% Rdg ±0.6 ºC
(-50 to +1200) ºC 0.4% Rdg ±1 º C
TC K
(-58.0 to +2192.0) ºF 0.4% Rdg ±1 ºF
(-58 to +2192) ºF 0.4% Rdg ±2 º F
(-150.0 to +400.0) ºC 0.4% Rdg ±0.6 ºC
(-150 to +400) ºC 0.4% Rdg ±1 º C
TC T
(-302.0 to +752.0) ºF 0.4% Rdg ±1 ºF
(-302 to +752) ºF 0.4% Rdg ±2 º F
(-100.0 to +800.0) ºC 0.2% Rdg ±0.6 ºC
(-100 +800) ºC 0.2% Rdg ±1 ºC
Pt100
(-148.0 to +1472.0) ºF 0.2% Rdg ±1 ºF
(-148 to +1472) ºF 0.2% Rdg ±2 ºF
MAX input signal applicable Process mA ±22 mA Process V ±11 V Load cell
±15 mV ±16.5 mV ±30 mV ±33 mV ±150 mV ±165 mV
MAX. continuous overload V and mV inputs 50 V MAX. continuous overload mA inputs 50 mA
DISPLAY Principal -19999 / 19999,
5 digits tricolour 14 mm Decimal point programmable LEDs 4 for functions and 4 for outputs
Display update rate Process/ Load cell 20 / s Pt100 4 / s Thermocouple 10 / s Input over range ----ouerouerouerouer,ouerouerouerouer
CONVERSION Technique Sigma/ Delta Resolution (±15 bit) Rate 20/s
temperature coefficient 100 ppm/ ºC Warm-up time 15 minutes
POWER SUPPLY DM4500/S1 (85 to 265) VAC, (100 to 300) VDC DM4500/S2 (22 to 53) VAC, (10.5 to 70) VDC
EXTERNAL FUSES (DIN 41661) DM4500/S1 (115 to 230) V AC F 0.2 A / 250 V DM4500/S2 (24 to 48) V AC F 2 A / 250 V
FILTERS Filter P
Cut-off frequency 4 Hz to 0.05 Hz Slope 20 dB / decade
ENVIRONMENTAL Indoor use Operating temperature (-10 ºC to +60) ºC Storage temperature (-25 ºC to +85) ºC
Relative humidity (non-condensing) <95 %
Max. altitude 2000 meters
Relay Option
CHARACTERISTICS OPT4500/2RLY OPT4500/4RLY
MAX.CURRENT (RESISTIVE LOAD)
8 A 5 A
MAX.POWER 2000 VA / 192 W 1250 VA / 150 W
MAX.VOLTAGE 250 VAC / 150
VDC 277 VAC / 125
VDC
CONTACT RESISTANCE Max. 3 mΩ Max. 30 mΩ
SWITCHING TIME Max. 10 ms Max. 10 ms
NPN / PNP Option
CHARACTERISTICS
MAX VOLTAGE 50 VDC
MAX CURRENT 50 mA
LEAKAGE CURRENT 100 µA (max.)
SWITCHING TIME 1 ms (max.)
mA / V Option
CHARACTERISTICS OPT4500/mA OUTPUT
OPT4500/V OUTPUT
RESOLUTION 13 BITS 13 BITS
ACCURACY 0.1% F.S. ±1BIT 0.1% F.S. ±1BIT
RESPONSE TIME 50 ms 50 ms
THERMAL DRIFT 0.5 µA/ºC 0.2 mV/ºC
MAXIMUM LOAD <= 500 Ω >=10 KΩ
MECHANICAL DETAILS
Dimensions (96x48x60) mm (DIN 43700) Panel cut out (92x45) mm Weight 200 g Case material Polycarbonate (UL 94 V-0) Sealed front panel IP65
IIIInnnnstrstrustrustruumentmentamentamentaation for Science tion for Science ation for Science ation for Science aannnndddd I I IInnnndddduuuusssstrytrytrytry ISI sa-nv Rue du Doyenné 3 - 1180 Brussels Tel +32 (0) 2 343 30 81 Fax 02/ 343 12 05 web : http:// www.isi-be.com mail : [email protected]
IIIInnnnstrstrustrustruumentmentamentamentaation for Science tion for Science ation for Science ation for Science aannnndddd I I IInnnndddduuuusssstrytrytrytry ISI sa-nv Rue du Doyenné 3 - 1180 Brussels Tel +32 (0) 2 343 30 81 Fax 02/ 343 12 05 web : http:// www.isi-be.com mail : [email protected]
